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      12-06-2013, 02:54 PM   #104
///mawana
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Drives: e90 M3
Join Date: Sep 2013
Location: Prosper, TX

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Just finished this diy and thanks to the OP! My car has 42k, bought used, I suspected plugs had never been changed and turns out I was correct. All plugs were in bad shape especially one from cylinder 4.

As for the diy itself, I had to default to the hanger-method particularly for plugs 3,4,7 and 8. I had the deep spark plug socket but wouldn't recommend it - for plugs 4 and 8 you have to release the deep socket first otherwise it won't come out with the plug attached.